Now that we are using the generic relocation framework, we don't need this code.
Note: Here we lose the ARM1176's enable_mmu code. This seems to duplicate code already in U-Boot now. Can anyone comment on this?
Signed-off-by: Simon Glass sjg@chromium.org --- Changes in v2: - Make relocation symbols global so we can use them outside start.S
Changes in v3: - Rebase to master - Remove the 'reloc' tag from each commit
arch/arm/cpu/arm1136/start.S | 133 +++---------------------- arch/arm/cpu/arm1176/start.S | 214 +++------------------------------------- arch/arm/cpu/arm720t/start.S | 127 +++--------------------- arch/arm/cpu/arm920t/start.S | 135 +++----------------------- arch/arm/cpu/arm925t/start.S | 135 +++----------------------- arch/arm/cpu/arm926ejs/start.S | 144 +++------------------------ arch/arm/cpu/arm946es/start.S | 130 +++---------------------- arch/arm/cpu/arm_intcm/start.S | 135 +++----------------------- arch/arm/cpu/armv7/start.S | 140 +++----------------------- arch/arm/cpu/ixp/start.S | 127 +++--------------------- arch/arm/cpu/lh7a40x/start.S | 124 +++--------------------- arch/arm/cpu/pxa/start.S | 138 +++----------------------- arch/arm/cpu/s3c44b0/start.S | 127 +++--------------------- arch/arm/cpu/sa1100/start.S | 124 +++--------------------- 14 files changed, 171 insertions(+), 1762 deletions(-)
diff --git a/arch/arm/cpu/arm1136/start.S b/arch/arm/cpu/arm1136/start.S index c0db96c..f1efa5e 100644 --- a/arch/arm/cpu/arm1136/start.S +++ b/arch/arm/cpu/arm1136/start.S @@ -108,6 +108,18 @@ _bss_end_ofs: _end_ofs: .word _end - _start
+.globl _rel_dyn_start_ofs +_rel_dyn_start_ofs: + .word __rel_dyn_start - _start + +.globl _rel_dyn_end_ofs +_rel_dyn_end_ofs: + .word __rel_dyn_end - _start + +.globl _dynsym_start_ofs +_dynsym_start_ofs: + .word __dynsym_start - _start + #ifdef CONFIG_USE_IRQ /* IRQ stack memory (calculated at run-time) */ .globl IRQ_STACK_START @@ -169,127 +181,6 @@ call_board_init_f:
bl board_init_f
-/*------------------------------------------------------------------------------*/ - -/* - * void relocate_code (addr_sp, gd, addr_moni) - * - * This "function" does not return, instead it continues in RAM - * after relocating the monitor code. - * - */ - .globl relocate_code -relocate_code: - mov r4, r0 /* save addr_sp */ - mov r5, r1 /* save addr of gd */ - mov r6, r2 /* save addr of destination */ - - /* Set up the stack */ -stack_setup: - mov sp, r4 - - adr r0, _start - cmp r0, r6 - beq clear_bss /* skip relocation */ - mov r1, r6 /* r1 <- scratch for copy_loop */ - ldr r3, _bss_start_ofs - add r2, r0, r3 /* r2 <- source end address */ - -copy_loop: - ldmia r0!, {r9-r10} /* copy from source address [r0] */ - stmia r1!, {r9-r10} /* copy to target address [r1] */ - cmp r0, r2 /* until source end address [r2] */ - blo copy_loop - -#ifndef CONFIG_SPL_BUILD - /* - * fix .rel.dyn relocations - */ - ldr r0, _TEXT_BASE /* r0 <- Text base */ - sub r9, r6, r0 /* r9 <- relocation offset */ - ldr r10, _dynsym_start_ofs /* r10 <- sym table ofs */ - add r10, r10, r0 /* r10 <- sym table in FLASH */ - ldr r2, _rel_dyn_start_ofs /* r2 <- rel dyn start ofs */ - add r2, r2, r0 /* r2 <- rel dyn start in FLASH */ - ldr r3, _rel_dyn_end_ofs /* r3 <- rel dyn end ofs */ - add r3, r3, r0 /* r3 <- rel dyn end in FLASH */ -fixloop: - ldr r0, [r2] /* r0 <- location to fix up, IN FLASH! */ - add r0, r0, r9 /* r0 <- location to fix up in RAM */ - ldr r1, [r2, #4] - and r7, r1, #0xff - cmp r7, #23 /* relative fixup? */ - beq fixrel - cmp r7, #2 /* absolute fixup? */ - beq fixabs - /* ignore unknown type of fixup */ - b fixnext -fixabs: - /* absolute fix: set location to (offset) symbol value */ - mov r1, r1, LSR #4 /* r1 <- symbol index in .dynsym */ - add r1, r10, r1 /* r1 <- address of symbol in table */ - ldr r1, [r1, #4] /* r1 <- symbol value */ - add r1, r1, r9 /* r1 <- relocated sym addr */ - b fixnext -fixrel: - /* relative fix: increase location by offset */ - ldr r1, [r0] - add r1, r1, r9 -fixnext: - str r1, [r0] - add r2, r2, #8 /* each rel.dyn entry is 8 bytes */ - cmp r2, r3 - blo fixloop -#endif - -clear_bss: -#ifndef CONFIG_SPL_BUILD - ldr r0, _bss_start_ofs - ldr r1, _bss_end_ofs - mov r4, r6 /* reloc addr */ - add r0, r0, r4 - add r1, r1, r4 - mov r2, #0x00000000 /* clear */ - -clbss_l:str r2, [r0] /* clear loop... */ - add r0, r0, #4 - cmp r0, r1 - bne clbss_l -#endif /* #ifndef CONFIG_SPL_BUILD */ - -/* - * We are done. Do not return, instead branch to second part of board - * initialization, now running from RAM. - */ -#ifdef CONFIG_NAND_SPL - ldr r0, _nand_boot_ofs - mov pc, r0 - -_nand_boot_ofs: - .word nand_boot -#else -jump_2_ram: - ldr r0, _board_init_r_ofs - ldr r1, _TEXT_BASE - add lr, r0, r1 - add lr, lr, r9 - /* setup parameters for board_init_r */ - mov r0, r5 /* gd_t */ - mov r1, r6 /* dest_addr */ - /* jump to it ... */ - mov pc, lr - -_board_init_r_ofs: - .word board_init_r - _start -#endif - -_rel_dyn_start_ofs: - .word __rel_dyn_start - _start -_rel_dyn_end_ofs: - .word __rel_dyn_end - _start -_dynsym_start_ofs: - .word __dynsym_start - _start - /* ************************************************************************* * diff --git a/arch/arm/cpu/arm1176/start.S b/arch/arm/cpu/arm1176/start.S index 848144a..a413f51 100644 --- a/arch/arm/cpu/arm1176/start.S +++ b/arch/arm/cpu/arm1176/start.S @@ -127,6 +127,18 @@ _bss_end_ofs: _end_ofs: .word _end - _start
+.globl _rel_dyn_start_ofs +_rel_dyn_start_ofs: + .word __rel_dyn_start - _start + +.globl _rel_dyn_end_ofs +_rel_dyn_end_ofs: + .word __rel_dyn_end - _start + +.globl _dynsym_start_ofs +_dynsym_start_ofs: + .word __dynsym_start - _start + /* IRQ stack memory (calculated at run-time) + 8 bytes */ .globl IRQ_STACK_START_IN IRQ_STACK_START_IN: @@ -231,208 +243,6 @@ call_board_init_f: ldr r0,=0x00000000 bl board_init_f
-/*------------------------------------------------------------------------------*/ - -/* - * void relocate_code (addr_sp, gd, addr_moni) - * - * This "function" does not return, instead it continues in RAM - * after relocating the monitor code. - * - */ - .globl relocate_code -relocate_code: - mov r4, r0 /* save addr_sp */ - mov r5, r1 /* save addr of gd */ - mov r6, r2 /* save addr of destination */ - - /* Set up the stack */ -stack_setup: - mov sp, r4 - - adr r0, _start - cmp r0, r6 - beq clear_bss /* skip relocation */ - mov r1, r6 /* r1 <- scratch for copy_loop */ - ldr r3, _bss_start_ofs - add r2, r0, r3 /* r2 <- source end address */ - -copy_loop: - ldmia r0!, {r9-r10} /* copy from source address [r0] */ - stmia r1!, {r9-r10} /* copy to target address [r1] */ - cmp r0, r2 /* until source end address [r2] */ - blo copy_loop - -#ifndef CONFIG_SPL_BUILD - /* - * fix .rel.dyn relocations - */ - ldr r0, _TEXT_BASE /* r0 <- Text base */ - sub r9, r6, r0 /* r9 <- relocation offset */ - ldr r10, _dynsym_start_ofs /* r10 <- sym table ofs */ - add r10, r10, r0 /* r10 <- sym table in FLASH */ - ldr r2, _rel_dyn_start_ofs /* r2 <- rel dyn start ofs */ - add r2, r2, r0 /* r2 <- rel dyn start in FLASH */ - ldr r3, _rel_dyn_end_ofs /* r3 <- rel dyn end ofs */ - add r3, r3, r0 /* r3 <- rel dyn end in FLASH */ -fixloop: - ldr r0, [r2] /* r0 <- location to fix up, IN FLASH! */ - add r0, r0, r9 /* r0 <- location to fix up in RAM */ - ldr r1, [r2, #4] - and r7, r1, #0xff - cmp r7, #23 /* relative fixup? */ - beq fixrel - cmp r7, #2 /* absolute fixup? */ - beq fixabs - /* ignore unknown type of fixup */ - b fixnext -fixabs: - /* absolute fix: set location to (offset) symbol value */ - mov r1, r1, LSR #4 /* r1 <- symbol index in .dynsym */ - add r1, r10, r1 /* r1 <- address of symbol in table */ - ldr r1, [r1, #4] /* r1 <- symbol value */ - add r1, r1, r9 /* r1 <- relocated sym addr */ - b fixnext -fixrel: - /* relative fix: increase location by offset */ - ldr r1, [r0] - add r1, r1, r9 -fixnext: - str r1, [r0] - add r2, r2, #8 /* each rel.dyn entry is 8 bytes */ - cmp r2, r3 - blo fixloop -#endif - -#ifdef CONFIG_ENABLE_MMU -enable_mmu: - /* enable domain access */ - ldr r5, =0x0000ffff - mcr p15, 0, r5, c3, c0, 0 /* load domain access register */ - - /* Set the TTB register */ - ldr r0, _mmu_table_base - ldr r1, =CONFIG_SYS_PHY_UBOOT_BASE - ldr r2, =0xfff00000 - bic r0, r0, r2 - orr r1, r0, r1 - mcr p15, 0, r1, c2, c0, 0 - - /* Enable the MMU */ - mrc p15, 0, r0, c1, c0, 0 - orr r0, r0, #1 /* Set CR_M to enable MMU */ - - /* Prepare to enable the MMU */ - adr r1, skip_hw_init - and r1, r1, #0x3fc - ldr r2, _TEXT_BASE - ldr r3, =0xfff00000 - and r2, r2, r3 - orr r2, r2, r1 - b mmu_enable - - .align 5 - /* Run in a single cache-line */ -mmu_enable: - - mcr p15, 0, r0, c1, c0, 0 - nop - nop - mov pc, r2 -skip_hw_init: -#endif - -clear_bss: -#ifndef CONFIG_SPL_BUILD - ldr r0, _bss_start_ofs - ldr r1, _bss_end_ofs - mov r4, r6 /* reloc addr */ - add r0, r0, r4 - add r1, r1, r4 - mov r2, #0x00000000 /* clear */ - -clbss_l:str r2, [r0] /* clear loop... */ - add r0, r0, #4 - cmp r0, r1 - bne clbss_l - -#ifndef CONFIG_NAND_SPL - bl coloured_LED_init - bl red_led_on -#endif -#endif - -/* - * We are done. Do not return, instead branch to second part of board - * initialization, now running from RAM. - */ -#ifdef CONFIG_NAND_SPL - ldr pc, _nand_boot - -_nand_boot: .word nand_boot -#else - ldr r0, _board_init_r_ofs - adr r1, _start - add lr, r0, r1 - add lr, lr, r9 - /* setup parameters for board_init_r */ - mov r0, r5 /* gd_t */ - mov r1, r6 /* dest_addr */ - /* jump to it ... */ - mov pc, lr - -_board_init_r_ofs: - .word board_init_r - _start -#endif - -_rel_dyn_start_ofs: - .word __rel_dyn_start - _start -_rel_dyn_end_ofs: - .word __rel_dyn_end - _start -_dynsym_start_ofs: - .word __dynsym_start - _start - -#ifdef CONFIG_ENABLE_MMU -_mmu_table_base: - .word mmu_table -#endif - -#ifndef CONFIG_NAND_SPL -/* - * we assume that cache operation is done before. (eg. cleanup_before_linux()) - * actually, we don't need to do anything about cache if not use d-cache in - * U-Boot. So, in this function we clean only MMU. by scsuh - * - * void theLastJump(void *kernel, int arch_num, uint boot_params); - */ -#ifdef CONFIG_ENABLE_MMU - .globl theLastJump -theLastJump: - mov r9, r0 - ldr r3, =0xfff00000 - ldr r4, _TEXT_PHY_BASE - adr r5, phy_last_jump - bic r5, r5, r3 - orr r5, r5, r4 - mov pc, r5 -phy_last_jump: - /* - * disable MMU stuff - */ - mrc p15, 0, r0, c1, c0, 0 - bic r0, r0, #0x00002300 /* clear bits 13, 9:8 (--V- --RS) */ - bic r0, r0, #0x00000087 /* clear bits 7, 2:0 (B--- -CAM) */ - orr r0, r0, #0x00000002 /* set bit 2 (A) Align */ - orr r0, r0, #0x00001000 /* set bit 12 (I) I-Cache */ - mcr p15, 0, r0, c1, c0, 0 - - mcr p15, 0, r0, c8, c7, 0 /* flush v4 TLB */ - - mov r0, #0 - mov pc, r9 -#endif - - /* ************************************************************************* * diff --git a/arch/arm/cpu/arm720t/start.S b/arch/arm/cpu/arm720t/start.S index 540e3c2..c703a88 100644 --- a/arch/arm/cpu/arm720t/start.S +++ b/arch/arm/cpu/arm720t/start.S @@ -97,6 +97,18 @@ _bss_end_ofs: _end_ofs: .word _end - _start
+.globl _rel_dyn_start_ofs +_rel_dyn_start_ofs: + .word __rel_dyn_start - _start + +.globl _rel_dyn_end_ofs +_rel_dyn_end_ofs: + .word __rel_dyn_end - _start + +.globl _dynsym_start_ofs +_dynsym_start_ofs: + .word __dynsym_start - _start + #ifdef CONFIG_USE_IRQ /* IRQ stack memory (calculated at run-time) */ .globl IRQ_STACK_START @@ -146,121 +158,6 @@ call_board_init_f: ldr r0,=0x00000000 bl board_init_f
-/*------------------------------------------------------------------------------*/ - -/* - * void relocate_code (addr_sp, gd, addr_moni) - * - * This "function" does not return, instead it continues in RAM - * after relocating the monitor code. - * - */ - .globl relocate_code -relocate_code: - mov r4, r0 /* save addr_sp */ - mov r5, r1 /* save addr of gd */ - mov r6, r2 /* save addr of destination */ - - /* Set up the stack */ -stack_setup: - mov sp, r4 - - adr r0, _start - cmp r0, r6 - beq clear_bss /* skip relocation */ - mov r1, r6 /* r1 <- scratch for copy_loop */ - ldr r3, _bss_start_ofs - add r2, r0, r3 /* r2 <- source end address */ - -copy_loop: - ldmia r0!, {r9-r10} /* copy from source address [r0] */ - stmia r1!, {r9-r10} /* copy to target address [r1] */ - cmp r0, r2 /* until source end address [r2] */ - blo copy_loop - -#ifndef CONFIG_SPL_BUILD - /* - * fix .rel.dyn relocations - */ - ldr r0, _TEXT_BASE /* r0 <- Text base */ - sub r9, r6, r0 /* r9 <- relocation offset */ - ldr r10, _dynsym_start_ofs /* r10 <- sym table ofs */ - add r10, r10, r0 /* r10 <- sym table in FLASH */ - ldr r2, _rel_dyn_start_ofs /* r2 <- rel dyn start ofs */ - add r2, r2, r0 /* r2 <- rel dyn start in FLASH */ - ldr r3, _rel_dyn_end_ofs /* r3 <- rel dyn end ofs */ - add r3, r3, r0 /* r3 <- rel dyn end in FLASH */ -fixloop: - ldr r0, [r2] /* r0 <- location to fix up, IN FLASH! */ - add r0, r0, r9 /* r0 <- location to fix up in RAM */ - ldr r1, [r2, #4] - and r7, r1, #0xff - cmp r7, #23 /* relative fixup? */ - beq fixrel - cmp r7, #2 /* absolute fixup? */ - beq fixabs - /* ignore unknown type of fixup */ - b fixnext -fixabs: - /* absolute fix: set location to (offset) symbol value */ - mov r1, r1, LSR #4 /* r1 <- symbol index in .dynsym */ - add r1, r10, r1 /* r1 <- address of symbol in table */ - ldr r1, [r1, #4] /* r1 <- symbol value */ - add r1, r1, r9 /* r1 <- relocated sym addr */ - b fixnext -fixrel: - /* relative fix: increase location by offset */ - ldr r1, [r0] - add r1, r1, r9 -fixnext: - str r1, [r0] - add r2, r2, #8 /* each rel.dyn entry is 8 bytes */ - cmp r2, r3 - blo fixloop -#endif - -clear_bss: -#ifndef CONFIG_SPL_BUILD - ldr r0, _bss_start_ofs - ldr r1, _bss_end_ofs - mov r4, r6 /* reloc addr */ - add r0, r0, r4 - add r1, r1, r4 - mov r2, #0x00000000 /* clear */ - -clbss_l:str r2, [r0] /* clear loop... */ - add r0, r0, #4 - cmp r0, r1 - bne clbss_l - - bl coloured_LED_init - bl red_led_on -#endif - -/* - * We are done. Do not return, instead branch to second part of board - * initialization, now running from RAM. - */ - ldr r0, _board_init_r_ofs - adr r1, _start - add lr, r0, r1 - add lr, lr, r9 - /* setup parameters for board_init_r */ - mov r0, r5 /* gd_t */ - mov r1, r6 /* dest_addr */ - /* jump to it ... */ - mov pc, lr - -_board_init_r_ofs: - .word board_init_r - _start - -_rel_dyn_start_ofs: - .word __rel_dyn_start - _start -_rel_dyn_end_ofs: - .word __rel_dyn_end - _start -_dynsym_start_ofs: - .word __dynsym_start - _start - /* ************************************************************************* * diff --git a/arch/arm/cpu/arm920t/start.S b/arch/arm/cpu/arm920t/start.S index 8c5612c..75f9043 100644 --- a/arch/arm/cpu/arm920t/start.S +++ b/arch/arm/cpu/arm920t/start.S @@ -93,6 +93,18 @@ _bss_end_ofs: _end_ofs: .word _end - _start
+.globl _rel_dyn_start_ofs +_rel_dyn_start_ofs: + .word __rel_dyn_start - _start + +.globl _rel_dyn_end_ofs +_rel_dyn_end_ofs: + .word __rel_dyn_end - _start + +.globl _dynsym_start_ofs +_dynsym_start_ofs: + .word __dynsym_start - _start + #ifdef CONFIG_USE_IRQ /* IRQ stack memory (calculated at run-time) */ .globl IRQ_STACK_START @@ -189,129 +201,6 @@ call_board_init_f: ldr r0,=0x00000000 bl board_init_f
-/*------------------------------------------------------------------------------*/ - -/* - * void relocate_code (addr_sp, gd, addr_moni) - * - * This "function" does not return, instead it continues in RAM - * after relocating the monitor code. - * - */ - .globl relocate_code -relocate_code: - mov r4, r0 /* save addr_sp */ - mov r5, r1 /* save addr of gd */ - mov r6, r2 /* save addr of destination */ - - /* Set up the stack */ -stack_setup: - mov sp, r4 - - adr r0, _start - cmp r0, r6 - beq clear_bss /* skip relocation */ - mov r1, r6 /* r1 <- scratch for copy_loop */ - ldr r3, _bss_start_ofs - add r2, r0, r3 /* r2 <- source end address */ - -copy_loop: - ldmia r0!, {r9-r10} /* copy from source address [r0] */ - stmia r1!, {r9-r10} /* copy to target address [r1] */ - cmp r0, r2 /* until source end address [r2] */ - blo copy_loop - -#ifndef CONFIG_SPL_BUILD - /* - * fix .rel.dyn relocations - */ - ldr r0, _TEXT_BASE /* r0 <- Text base */ - sub r9, r6, r0 /* r9 <- relocation offset */ - ldr r10, _dynsym_start_ofs /* r10 <- sym table ofs */ - add r10, r10, r0 /* r10 <- sym table in FLASH */ - ldr r2, _rel_dyn_start_ofs /* r2 <- rel dyn start ofs */ - add r2, r2, r0 /* r2 <- rel dyn start in FLASH */ - ldr r3, _rel_dyn_end_ofs /* r3 <- rel dyn end ofs */ - add r3, r3, r0 /* r3 <- rel dyn end in FLASH */ -fixloop: - ldr r0, [r2] /* r0 <- location to fix up, IN FLASH! */ - add r0, r0, r9 /* r0 <- location to fix up in RAM */ - ldr r1, [r2, #4] - and r7, r1, #0xff - cmp r7, #23 /* relative fixup? */ - beq fixrel - cmp r7, #2 /* absolute fixup? */ - beq fixabs - /* ignore unknown type of fixup */ - b fixnext -fixabs: - /* absolute fix: set location to (offset) symbol value */ - mov r1, r1, LSR #4 /* r1 <- symbol index in .dynsym */ - add r1, r10, r1 /* r1 <- address of symbol in table */ - ldr r1, [r1, #4] /* r1 <- symbol value */ - add r1, r1, r9 /* r1 <- relocated sym addr */ - b fixnext -fixrel: - /* relative fix: increase location by offset */ - ldr r1, [r0] - add r1, r1, r9 -fixnext: - str r1, [r0] - add r2, r2, #8 /* each rel.dyn entry is 8 bytes */ - cmp r2, r3 - blo fixloop -#endif - -clear_bss: -#ifndef CONFIG_SPL_BUILD - ldr r0, _bss_start_ofs - ldr r1, _bss_end_ofs - mov r4, r6 /* reloc addr */ - add r0, r0, r4 - add r1, r1, r4 - mov r2, #0x00000000 /* clear */ - -clbss_l:str r2, [r0] /* clear loop... */ - add r0, r0, #4 - cmp r0, r1 - bne clbss_l - - bl coloured_LED_init - bl red_led_on -#endif - -/* - * We are done. Do not return, instead branch to second part of board - * initialization, now running from RAM. - */ -#ifdef CONFIG_NAND_SPL - ldr r0, _nand_boot_ofs - mov pc, r0 - -_nand_boot_ofs: - .word nand_boot -#else - ldr r0, _board_init_r_ofs - adr r1, _start - add lr, r0, r1 - add lr, lr, r9 - /* setup parameters for board_init_r */ - mov r0, r5 /* gd_t */ - mov r1, r6 /* dest_addr */ - /* jump to it ... */ - mov pc, lr - -_board_init_r_ofs: - .word board_init_r - _start -#endif - -_rel_dyn_start_ofs: - .word __rel_dyn_start - _start -_rel_dyn_end_ofs: - .word __rel_dyn_end - _start -_dynsym_start_ofs: - .word __dynsym_start - _start - /* ************************************************************************* * diff --git a/arch/arm/cpu/arm925t/start.S b/arch/arm/cpu/arm925t/start.S index dbb93ef..30df379 100644 --- a/arch/arm/cpu/arm925t/start.S +++ b/arch/arm/cpu/arm925t/start.S @@ -103,6 +103,18 @@ _bss_end_ofs: _end_ofs: .word _end - _start
+.globl _rel_dyn_start_ofs +_rel_dyn_start_ofs: + .word __rel_dyn_start - _start + +.globl _rel_dyn_end_ofs +_rel_dyn_end_ofs: + .word __rel_dyn_end - _start + +.globl _dynsym_start_ofs +_dynsym_start_ofs: + .word __dynsym_start - _start + #ifdef CONFIG_USE_IRQ /* IRQ stack memory (calculated at run-time) */ .globl IRQ_STACK_START @@ -183,129 +195,6 @@ call_board_init_f: ldr r0,=0x00000000 bl board_init_f
-/*------------------------------------------------------------------------------*/ - -/* - * void relocate_code (addr_sp, gd, addr_moni) - * - * This "function" does not return, instead it continues in RAM - * after relocating the monitor code. - * - */ - .globl relocate_code -relocate_code: - mov r4, r0 /* save addr_sp */ - mov r5, r1 /* save addr of gd */ - mov r6, r2 /* save addr of destination */ - - /* Set up the stack */ -stack_setup: - mov sp, r4 - - adr r0, _start - cmp r0, r6 - beq clear_bss /* skip relocation */ - mov r1, r6 /* r1 <- scratch for copy_loop */ - ldr r3, _bss_start_ofs - add r2, r0, r3 /* r2 <- source end address */ - -copy_loop: - ldmia r0!, {r9-r10} /* copy from source address [r0] */ - stmia r1!, {r9-r10} /* copy to target address [r1] */ - cmp r0, r2 /* until source end address [r2] */ - blo copy_loop - -#ifndef CONFIG_SPL_BUILD - /* - * fix .rel.dyn relocations - */ - ldr r0, _TEXT_BASE /* r0 <- Text base */ - sub r9, r6, r0 /* r9 <- relocation offset */ - ldr r10, _dynsym_start_ofs /* r10 <- sym table ofs */ - add r10, r10, r0 /* r10 <- sym table in FLASH */ - ldr r2, _rel_dyn_start_ofs /* r2 <- rel dyn start ofs */ - add r2, r2, r0 /* r2 <- rel dyn start in FLASH */ - ldr r3, _rel_dyn_end_ofs /* r3 <- rel dyn end ofs */ - add r3, r3, r0 /* r3 <- rel dyn end in FLASH */ -fixloop: - ldr r0, [r2] /* r0 <- location to fix up, IN FLASH! */ - add r0, r0, r9 /* r0 <- location to fix up in RAM */ - ldr r1, [r2, #4] - and r7, r1, #0xff - cmp r7, #23 /* relative fixup? */ - beq fixrel - cmp r7, #2 /* absolute fixup? */ - beq fixabs - /* ignore unknown type of fixup */ - b fixnext -fixabs: - /* absolute fix: set location to (offset) symbol value */ - mov r1, r1, LSR #4 /* r1 <- symbol index in .dynsym */ - add r1, r10, r1 /* r1 <- address of symbol in table */ - ldr r1, [r1, #4] /* r1 <- symbol value */ - add r1, r1, r9 /* r1 <- relocated sym addr */ - b fixnext -fixrel: - /* relative fix: increase location by offset */ - ldr r1, [r0] - add r1, r1, r9 -fixnext: - str r1, [r0] - add r2, r2, #8 /* each rel.dyn entry is 8 bytes */ - cmp r2, r3 - blo fixloop -#endif - -clear_bss: -#ifndef CONFIG_SPL_BUILD - ldr r0, _bss_start_ofs - ldr r1, _bss_end_ofs - mov r4, r6 /* reloc addr */ - add r0, r0, r4 - add r1, r1, r4 - mov r2, #0x00000000 /* clear */ - -clbss_l:str r2, [r0] /* clear loop... */ - add r0, r0, #4 - cmp r0, r1 - bne clbss_l - - bl coloured_LED_init - bl red_led_on -#endif - -/* - * We are done. Do not return, instead branch to second part of board - * initialization, now running from RAM. - */ -#ifdef CONFIG_NAND_SPL - ldr r0, _nand_boot_ofs - mov pc, r0 - -_nand_boot_ofs: - .word nand_boot -#else - ldr r0, _board_init_r_ofs - adr r1, _start - add lr, r0, r1 - add lr, lr, r9 - /* setup parameters for board_init_r */ - mov r0, r5 /* gd_t */ - mov r1, r6 /* dest_addr */ - /* jump to it ... */ - mov pc, lr - -_board_init_r_ofs: - .word board_init_r - _start -#endif - -_rel_dyn_start_ofs: - .word __rel_dyn_start - _start -_rel_dyn_end_ofs: - .word __rel_dyn_end - _start -_dynsym_start_ofs: - .word __dynsym_start - _start - /* ************************************************************************* * diff --git a/arch/arm/cpu/arm926ejs/start.S b/arch/arm/cpu/arm926ejs/start.S index 6a09c02..ac358bc 100644 --- a/arch/arm/cpu/arm926ejs/start.S +++ b/arch/arm/cpu/arm926ejs/start.S @@ -160,6 +160,18 @@ _end: .word __bss_end__ #endif
+.globl _rel_dyn_start_ofs +_rel_dyn_start_ofs: + .word __rel_dyn_start - _start + +.globl _rel_dyn_end_ofs +_rel_dyn_end_ofs: + .word __rel_dyn_end - _start + +.globl _dynsym_start_ofs +_dynsym_start_ofs: + .word __dynsym_start - _start + #ifdef CONFIG_USE_IRQ /* IRQ stack memory (calculated at run-time) */ .globl IRQ_STACK_START @@ -211,138 +223,6 @@ call_board_init_f: ldr r0,=0x00000000 bl board_init_f
-/*------------------------------------------------------------------------------*/ - -/* - * void relocate_code (addr_sp, gd, addr_moni) - * - * This "function" does not return, instead it continues in RAM - * after relocating the monitor code. - * - */ - .globl relocate_code -relocate_code: - mov r4, r0 /* save addr_sp */ - mov r5, r1 /* save addr of gd */ - mov r6, r2 /* save addr of destination */ - - /* Set up the stack */ -stack_setup: - mov sp, r4 - - adr r0, _start - sub r9, r6, r0 /* r9 <- relocation offset */ - cmp r0, r6 - beq clear_bss /* skip relocation */ - mov r1, r6 /* r1 <- scratch for copy loop */ - ldr r3, _bss_start_ofs - add r2, r0, r3 /* r2 <- source end address */ - -copy_loop: - ldmia r0!, {r9-r10} /* copy from source address [r0] */ - stmia r1!, {r9-r10} /* copy to target address [r1] */ - cmp r0, r2 /* until source end address [r2] */ - blo copy_loop - -#ifndef CONFIG_SPL_BUILD - /* - * fix .rel.dyn relocations - */ - ldr r0, _TEXT_BASE /* r0 <- Text base */ - sub r9, r6, r0 /* r9 <- relocation offset */ - ldr r10, _dynsym_start_ofs /* r10 <- sym table ofs */ - add r10, r10, r0 /* r10 <- sym table in FLASH */ - ldr r2, _rel_dyn_start_ofs /* r2 <- rel dyn start ofs */ - add r2, r2, r0 /* r2 <- rel dyn start in FLASH */ - ldr r3, _rel_dyn_end_ofs /* r3 <- rel dyn end ofs */ - add r3, r3, r0 /* r3 <- rel dyn end in FLASH */ -fixloop: - ldr r0, [r2] /* r0 <- location to fix up, IN FLASH! */ - add r0, r0, r9 /* r0 <- location to fix up in RAM */ - ldr r1, [r2, #4] - and r7, r1, #0xff - cmp r7, #23 /* relative fixup? */ - beq fixrel - cmp r7, #2 /* absolute fixup? */ - beq fixabs - /* ignore unknown type of fixup */ - b fixnext -fixabs: - /* absolute fix: set location to (offset) symbol value */ - mov r1, r1, LSR #4 /* r1 <- symbol index in .dynsym */ - add r1, r10, r1 /* r1 <- address of symbol in table */ - ldr r1, [r1, #4] /* r1 <- symbol value */ - add r1, r1, r9 /* r1 <- relocated sym addr */ - b fixnext -fixrel: - /* relative fix: increase location by offset */ - ldr r1, [r0] - add r1, r1, r9 -fixnext: - str r1, [r0] - add r2, r2, #8 /* each rel.dyn entry is 8 bytes */ - cmp r2, r3 - blo fixloop -#endif - -clear_bss: -#ifdef CONFIG_SPL_BUILD - /* No relocation for SPL */ - ldr r0, =__bss_start - ldr r1, =__bss_end__ -#else - ldr r0, _bss_start_ofs - ldr r1, _bss_end_ofs - mov r4, r6 /* reloc addr */ - add r0, r0, r4 - add r1, r1, r4 -#endif - mov r2, #0x00000000 /* clear */ - -clbss_l:cmp r0, r1 /* clear loop... */ - bhs clbss_e /* if reached end of bss, exit */ - str r2, [r0] - add r0, r0, #4 - b clbss_l -clbss_e: - -#ifndef CONFIG_SPL_BUILD - bl coloured_LED_init - bl red_led_on -#endif - -/* - * We are done. Do not return, instead branch to second part of board - * initialization, now running from RAM. - */ -#ifdef CONFIG_NAND_SPL - ldr r0, _nand_boot_ofs - mov pc, r0 - -_nand_boot_ofs: - .word nand_boot -#else - ldr r0, _board_init_r_ofs - ldr r1, _TEXT_BASE - add lr, r0, r1 - add lr, lr, r9 - /* setup parameters for board_init_r */ - mov r0, r5 /* gd_t */ - mov r1, r6 /* dest_addr */ - /* jump to it ... */ - mov pc, lr - -_board_init_r_ofs: - .word board_init_r - _start -#endif - -_rel_dyn_start_ofs: - .word __rel_dyn_start - _start -_rel_dyn_end_ofs: - .word __rel_dyn_end - _start -_dynsym_start_ofs: - .word __dynsym_start - _start - /* ************************************************************************* * diff --git a/arch/arm/cpu/arm946es/start.S b/arch/arm/cpu/arm946es/start.S index 89ba558..7c5d19f 100644 --- a/arch/arm/cpu/arm946es/start.S +++ b/arch/arm/cpu/arm946es/start.S @@ -109,6 +109,18 @@ _bss_end_ofs: _end_ofs: .word _end - _start
+.globl _rel_dyn_start_ofs +_rel_dyn_start_ofs: + .word __rel_dyn_start - _start + +.globl _rel_dyn_end_ofs +_rel_dyn_end_ofs: + .word __rel_dyn_end - _start + +.globl _dynsym_start_ofs +_dynsym_start_ofs: + .word __dynsym_start - _start + #ifdef CONFIG_USE_IRQ /* IRQ stack memory (calculated at run-time) */ .globl IRQ_STACK_START @@ -154,124 +166,6 @@ call_board_init_f: ldr r0,=0x00000000 bl board_init_f
-/*------------------------------------------------------------------------------*/ - -/* - * void relocate_code (addr_sp, gd, addr_moni) - * - * This "function" does not return, instead it continues in RAM - * after relocating the monitor code. - * - */ - .globl relocate_code -relocate_code: - mov r4, r0 /* save addr_sp */ - mov r5, r1 /* save addr of gd */ - mov r6, r2 /* save addr of destination */ - - /* Set up the stack */ -stack_setup: - mov sp, r4 - - adr r0, _start - cmp r0, r6 - beq clear_bss /* skip relocation */ - mov r1, r6 /* r1 <- scratch for copy_loop */ - ldr r3, _bss_start_ofs - add r2, r0, r3 /* r2 <- source end address */ - -copy_loop: - ldmia r0!, {r9-r10} /* copy from source address [r0] */ - stmia r1!, {r9-r10} /* copy to target address [r1] */ - cmp r0, r2 /* until source end address [r2] */ - blo copy_loop - -#ifndef CONFIG_SPL_BUILD - /* - * fix .rel.dyn relocations - */ - ldr r0, _TEXT_BASE /* r0 <- Text base */ - sub r9, r6, r0 /* r9 <- relocation offset */ - ldr r10, _dynsym_start_ofs /* r10 <- sym table ofs */ - add r10, r10, r0 /* r10 <- sym table in FLASH */ - ldr r2, _rel_dyn_start_ofs /* r2 <- rel dyn start ofs */ - add r2, r2, r0 /* r2 <- rel dyn start in FLASH */ - ldr r3, _rel_dyn_end_ofs /* r3 <- rel dyn end ofs */ - add r3, r3, r0 /* r3 <- rel dyn end in FLASH */ -fixloop: - ldr r0, [r2] /* r0 <- location to fix up, IN FLASH! */ - add r0, r0, r9 /* r0 <- location to fix up in RAM */ - ldr r1, [r2, #4] - and r7, r1, #0xff - cmp r7, #23 /* relative fixup? */ - beq fixrel - cmp r7, #2 /* absolute fixup? */ - beq fixabs - /* ignore unknown type of fixup */ - b fixnext -fixabs: - /* absolute fix: set location to (offset) symbol value */ - mov r1, r1, LSR #4 /* r1 <- symbol index in .dynsym */ - add r1, r10, r1 /* r1 <- address of symbol in table */ - ldr r1, [r1, #4] /* r1 <- symbol value */ - add r1, r1, r9 /* r1 <- relocated sym addr */ - b fixnext -fixrel: - /* relative fix: increase location by offset */ - ldr r1, [r0] - add r1, r1, r9 -fixnext: - str r1, [r0] - add r2, r2, #8 /* each rel.dyn entry is 8 bytes */ - cmp r2, r3 - blo fixloop -#endif - -clear_bss: -#ifndef CONFIG_SPL_BUILD - ldr r0, _bss_start_ofs - ldr r1, _bss_end_ofs - mov r4, r6 /* reloc addr */ - add r0, r0, r4 - add r1, r1, r4 - mov r2, #0x00000000 /* clear */ - -clbss_l:str r2, [r0] /* clear loop... */ - add r0, r0, #4 - cmp r0, r1 - blo clbss_l -#endif - -/* - * We are done. Do not return, instead branch to second part of board - * initialization, now running from RAM. - */ -#ifdef CONFIG_NAND_SPL - ldr pc, _nand_boot - -_nand_boot: .word nand_boot -#else - ldr r0, _board_init_r_ofs - adr r1, _start - add lr, r0, r1 - add lr, lr, r9 - /* setup parameters for board_init_r */ - mov r0, r5 /* gd_t */ - mov r1, r6 /* dest_addr */ - /* jump to it ... */ - mov pc, lr - -_board_init_r_ofs: - .word board_init_r - _start -#endif - -_rel_dyn_start_ofs: - .word __rel_dyn_start - _start -_rel_dyn_end_ofs: - .word __rel_dyn_end - _start -_dynsym_start_ofs: - .word __dynsym_start - _start - /* ************************************************************************* * diff --git a/arch/arm/cpu/arm_intcm/start.S b/arch/arm/cpu/arm_intcm/start.S index 2033b36..28fa6c6 100644 --- a/arch/arm/cpu/arm_intcm/start.S +++ b/arch/arm/cpu/arm_intcm/start.S @@ -105,6 +105,18 @@ _bss_end_ofs: _end_ofs: .word _end - _start
+.globl _rel_dyn_start_ofs +_rel_dyn_start_ofs: + .word __rel_dyn_start - _start + +.globl _rel_dyn_end_ofs +_rel_dyn_end_ofs: + .word __rel_dyn_end - _start + +.globl _dynsym_start_ofs +_dynsym_start_ofs: + .word __dynsym_start - _start + #ifdef CONFIG_USE_IRQ /* IRQ stack memory (calculated at run-time) */ .globl IRQ_STACK_START @@ -150,129 +162,6 @@ call_board_init_f: ldr r0,=0x00000000 bl board_init_f
-/*------------------------------------------------------------------------------*/ - -/* - * void relocate_code (addr_sp, gd, addr_moni) - * - * This "function" does not return, instead it continues in RAM - * after relocating the monitor code. - * - */ - .globl relocate_code -relocate_code: - mov r4, r0 /* save addr_sp */ - mov r5, r1 /* save addr of gd */ - mov r6, r2 /* save addr of destination */ - - /* Set up the stack */ -stack_setup: - mov sp, r4 - - adr r0, _start - cmp r0, r6 - beq clear_bss /* skip relocation */ - mov r1, r6 /* r1 <- scratch for copy_loop */ - ldr r3, _bss_start_ofs - add r2, r0, r3 /* r2 <- source end address */ - -copy_loop: - ldmia r0!, {r9-r10} /* copy from source address [r0] */ - stmia r1!, {r9-r10} /* copy to target address [r1] */ - cmp r0, r2 /* until source end address [r2] */ - blo copy_loop - -#ifndef CONFIG_SPL_BUILD - /* - * fix .rel.dyn relocations - */ - ldr r0, _TEXT_BASE /* r0 <- Text base */ - sub r9, r6, r0 /* r9 <- relocation offset */ - ldr r10, _dynsym_start_ofs /* r10 <- sym table ofs */ - add r10, r10, r0 /* r10 <- sym table in FLASH */ - ldr r2, _rel_dyn_start_ofs /* r2 <- rel dyn start ofs */ - add r2, r2, r0 /* r2 <- rel dyn start in FLASH */ - ldr r3, _rel_dyn_end_ofs /* r3 <- rel dyn end ofs */ - add r3, r3, r0 /* r3 <- rel dyn end in FLASH */ -fixloop: - ldr r0, [r2] /* r0 <- location to fix up, IN FLASH! */ - add r0, r0, r9 /* r0 <- location to fix up in RAM */ - ldr r1, [r2, #4] - and r7, r1, #0xff - cmp r7, #23 /* relative fixup? */ - beq fixrel - cmp r7, #2 /* absolute fixup? */ - beq fixabs - /* ignore unknown type of fixup */ - b fixnext -fixabs: - /* absolute fix: set location to (offset) symbol value */ - mov r1, r1, LSR #4 /* r1 <- symbol index in .dynsym */ - add r1, r10, r1 /* r1 <- address of symbol in table */ - ldr r1, [r1, #4] /* r1 <- symbol value */ - add r1, r1, r9 /* r1 <- relocated sym addr */ - b fixnext -fixrel: - /* relative fix: increase location by offset */ - ldr r1, [r0] - add r1, r1, r9 -fixnext: - str r1, [r0] - add r2, r2, #8 /* each rel.dyn entry is 8 bytes */ - cmp r2, r3 - blo fixloop -#endif - -clear_bss: -#ifndef CONFIG_SPL_BUILD - ldr r0, _bss_start_ofs - ldr r1, _bss_end_ofs - mov r4, r6 /* reloc addr */ - add r0, r0, r4 - add r1, r1, r4 - mov r2, #0x00000000 /* clear */ - -clbss_l:str r2, [r0] /* clear loop... */ - add r0, r0, #4 - cmp r0, r1 - bne clbss_l - - bl coloured_LED_init - bl red_led_on -#endif - -/* - * We are done. Do not return, instead branch to second part of board - * initialization, now running from RAM. - */ -#ifdef CONFIG_NAND_SPL - ldr r0, _nand_boot_ofs - mov pc, r0 - -_nand_boot_ofs: - .word nand_boot -#else - ldr r0, _board_init_r_ofs - adr r1, _start - add lr, r0, r1 - add lr, lr, r9 - /* setup parameters for board_init_r */ - mov r0, r5 /* gd_t */ - mov r1, r6 /* dest_addr */ - /* jump to it ... */ - mov pc, lr - -_board_init_r_ofs: - .word board_init_r - _start -#endif - -_rel_dyn_start_ofs: - .word __rel_dyn_start - _start -_rel_dyn_end_ofs: - .word __rel_dyn_end - _start -_dynsym_start_ofs: - .word __dynsym_start - _start - /* ************************************************************************* * diff --git a/arch/arm/cpu/armv7/start.S b/arch/arm/cpu/armv7/start.S index ef08a55..a2c5279 100644 --- a/arch/arm/cpu/armv7/start.S +++ b/arch/arm/cpu/armv7/start.S @@ -84,6 +84,7 @@ _TEXT_BASE:
/* * These are defined in the board-specific linker script. + * TODO: move these into proc.S since they are common */ .globl _bss_start_ofs _bss_start_ofs: @@ -101,6 +102,20 @@ _bss_end_ofs: _end_ofs: .word _end - _start
+#ifndef CONFIG_SPL_BUILD +.globl _rel_dyn_start_ofs +_rel_dyn_start_ofs: + .word __rel_dyn_start - _start + +.globl _rel_dyn_end_ofs +_rel_dyn_end_ofs: + .word __rel_dyn_end - _start + +.globl _dynsym_start_ofs +_dynsym_start_ofs: + .word __dynsym_start - _start +#endif + #ifdef CONFIG_USE_IRQ /* IRQ stack memory (calculated at run-time) */ .globl IRQ_STACK_START @@ -165,131 +180,6 @@ call_board_init_f:
/*------------------------------------------------------------------------------*/
-/* - * void relocate_code (addr_sp, gd, addr_moni) - * - * This "function" does not return, instead it continues in RAM - * after relocating the monitor code. - * - */ - .globl relocate_code -relocate_code: - mov r4, r0 /* save addr_sp */ - mov r5, r1 /* save addr of gd */ - mov r6, r2 /* save addr of destination */ - - /* Set up the stack */ -stack_setup: - mov sp, r4 - - adr r0, _start - cmp r0, r6 - moveq r9, #0 /* no relocation. relocation offset(r9) = 0 */ - beq clear_bss /* skip relocation */ - mov r1, r6 /* r1 <- scratch for copy_loop */ - ldr r3, _image_copy_end_ofs - add r2, r0, r3 /* r2 <- source end address */ - -copy_loop: - ldmia r0!, {r9-r10} /* copy from source address [r0] */ - stmia r1!, {r9-r10} /* copy to target address [r1] */ - cmp r0, r2 /* until source end address [r2] */ - blo copy_loop - -#ifndef CONFIG_SPL_BUILD - /* - * fix .rel.dyn relocations - */ - ldr r0, _TEXT_BASE /* r0 <- Text base */ - sub r9, r6, r0 /* r9 <- relocation offset */ - ldr r10, _dynsym_start_ofs /* r10 <- sym table ofs */ - add r10, r10, r0 /* r10 <- sym table in FLASH */ - ldr r2, _rel_dyn_start_ofs /* r2 <- rel dyn start ofs */ - add r2, r2, r0 /* r2 <- rel dyn start in FLASH */ - ldr r3, _rel_dyn_end_ofs /* r3 <- rel dyn end ofs */ - add r3, r3, r0 /* r3 <- rel dyn end in FLASH */ -fixloop: - ldr r0, [r2] /* r0 <- location to fix up, IN FLASH! */ - add r0, r0, r9 /* r0 <- location to fix up in RAM */ - ldr r1, [r2, #4] - and r7, r1, #0xff - cmp r7, #23 /* relative fixup? */ - beq fixrel - cmp r7, #2 /* absolute fixup? */ - beq fixabs - /* ignore unknown type of fixup */ - b fixnext -fixabs: - /* absolute fix: set location to (offset) symbol value */ - mov r1, r1, LSR #4 /* r1 <- symbol index in .dynsym */ - add r1, r10, r1 /* r1 <- address of symbol in table */ - ldr r1, [r1, #4] /* r1 <- symbol value */ - add r1, r1, r9 /* r1 <- relocated sym addr */ - b fixnext -fixrel: - /* relative fix: increase location by offset */ - ldr r1, [r0] - add r1, r1, r9 -fixnext: - str r1, [r0] - add r2, r2, #8 /* each rel.dyn entry is 8 bytes */ - cmp r2, r3 - blo fixloop - b clear_bss -_rel_dyn_start_ofs: - .word __rel_dyn_start - _start -_rel_dyn_end_ofs: - .word __rel_dyn_end - _start -_dynsym_start_ofs: - .word __dynsym_start - _start - -#endif /* #ifndef CONFIG_SPL_BUILD */ - -clear_bss: -#ifdef CONFIG_SPL_BUILD - /* No relocation for SPL */ - ldr r0, =__bss_start - ldr r1, =__bss_end__ -#else - ldr r0, _bss_start_ofs - ldr r1, _bss_end_ofs - mov r4, r6 /* reloc addr */ - add r0, r0, r4 - add r1, r1, r4 -#endif - mov r2, #0x00000000 /* clear */ - -clbss_l:str r2, [r0] /* clear loop... */ - add r0, r0, #4 - cmp r0, r1 - bne clbss_l - -/* - * We are done. Do not return, instead branch to second part of board - * initialization, now running from RAM. - */ -jump_2_ram: -/* - * If I-cache is enabled invalidate it - */ -#ifndef CONFIG_SYS_ICACHE_OFF - mcr p15, 0, r0, c7, c5, 0 @ invalidate icache - mcr p15, 0, r0, c7, c10, 4 @ DSB - mcr p15, 0, r0, c7, c5, 4 @ ISB -#endif - ldr r0, _board_init_r_ofs - adr r1, _start - add lr, r0, r1 - add lr, lr, r9 - /* setup parameters for board_init_r */ - mov r0, r5 /* gd_t */ - mov r1, r6 /* dest_addr */ - /* jump to it ... */ - mov pc, lr - -_board_init_r_ofs: - .word board_init_r - _start - /************************************************************************* * * cpu_init_cp15 diff --git a/arch/arm/cpu/ixp/start.S b/arch/arm/cpu/ixp/start.S index cb32121..6ecf72e 100644 --- a/arch/arm/cpu/ixp/start.S +++ b/arch/arm/cpu/ixp/start.S @@ -118,6 +118,18 @@ _bss_end_ofs: _end_ofs: .word _end - _start
+.globl _rel_dyn_start_ofs +_rel_dyn_start_ofs: + .word __rel_dyn_start - _start + +.globl _rel_dyn_end_ofs +_rel_dyn_end_ofs: + .word __rel_dyn_end - _start + +.globl _dynsym_start_ofs +_dynsym_start_ofs: + .word __dynsym_start - _start + #ifdef CONFIG_USE_IRQ /* IRQ stack memory (calculated at run-time) */ .globl IRQ_STACK_START @@ -252,121 +264,6 @@ call_board_init_f: ldr r0,=0x00000000 bl board_init_f
-/*------------------------------------------------------------------------------*/ - -/* - * void relocate_code (addr_sp, gd, addr_moni) - * - * This "function" does not return, instead it continues in RAM - * after relocating the monitor code. - * - */ - .globl relocate_code -relocate_code: - mov r4, r0 /* save addr_sp */ - mov r5, r1 /* save addr of gd */ - mov r6, r2 /* save addr of destination */ - - /* Set up the stack */ -stack_setup: - mov sp, r4 - - adr r0, _start - cmp r0, r6 - beq clear_bss /* skip relocation */ - mov r1, r6 /* r1 <- scratch for copy_loop */ - ldr r3, _bss_start_ofs - add r2, r0, r3 /* r2 <- source end address */ - -copy_loop: - ldmia r0!, {r9-r10} /* copy from source address [r0] */ - stmia r1!, {r9-r10} /* copy to target address [r1] */ - cmp r0, r2 /* until source end address [r2] */ - blo copy_loop - -#ifndef CONFIG_SPL_BUILD - /* - * fix .rel.dyn relocations - */ - ldr r0, _TEXT_BASE /* r0 <- Text base */ - sub r9, r6, r0 /* r9 <- relocation offset */ - ldr r10, _dynsym_start_ofs /* r10 <- sym table ofs */ - add r10, r10, r0 /* r10 <- sym table in FLASH */ - ldr r2, _rel_dyn_start_ofs /* r2 <- rel dyn start ofs */ - add r2, r2, r0 /* r2 <- rel dyn start in FLASH */ - ldr r3, _rel_dyn_end_ofs /* r3 <- rel dyn end ofs */ - add r3, r3, r0 /* r3 <- rel dyn end in FLASH */ -fixloop: - ldr r0, [r2] /* r0 <- location to fix up, IN FLASH! */ - add r0, r0, r9 /* r0 <- location to fix up in RAM */ - ldr r1, [r2, #4] - and r7, r1, #0xff - cmp r7, #23 /* relative fixup? */ - beq fixrel - cmp r7, #2 /* absolute fixup? */ - beq fixabs - /* ignore unknown type of fixup */ - b fixnext -fixabs: - /* absolute fix: set location to (offset) symbol value */ - mov r1, r1, LSR #4 /* r1 <- symbol index in .dynsym */ - add r1, r10, r1 /* r1 <- address of symbol in table */ - ldr r1, [r1, #4] /* r1 <- symbol value */ - add r1, r1, r9 /* r1 <- relocated sym addr */ - b fixnext -fixrel: - /* relative fix: increase location by offset */ - ldr r1, [r0] - add r1, r1, r9 -fixnext: - str r1, [r0] - add r2, r2, #8 /* each rel.dyn entry is 8 bytes */ - cmp r2, r3 - blo fixloop -#endif - -clear_bss: -#ifndef CONFIG_SPL_BUILD - ldr r0, _bss_start_ofs - ldr r1, _bss_end_ofs - mov r4, r6 /* reloc addr */ - add r0, r0, r4 - add r1, r1, r4 - mov r2, #0x00000000 /* clear */ - -clbss_l:str r2, [r0] /* clear loop... */ - add r0, r0, #4 - cmp r0, r1 - bne clbss_l - - bl coloured_LED_init - bl red_led_on -#endif - -/* - * We are done. Do not return, instead branch to second part of board - * initialization, now running from RAM. - */ - ldr r0, _board_init_r_ofs - adr r1, _start - add lr, r0, r1 - add lr, lr, r9 - /* setup parameters for board_init_r */ - mov r0, r5 /* gd_t */ - mov r1, r6 /* dest_addr */ - /* jump to it ... */ - mov pc, lr - -_board_init_r_ofs: - .word board_init_r - _start - -_rel_dyn_start_ofs: - .word __rel_dyn_start - _start -_rel_dyn_end_ofs: - .word __rel_dyn_end - _start -_dynsym_start_ofs: - .word __dynsym_start - _start - /****************************************************************************/ /* */ /* Interrupt handling */ diff --git a/arch/arm/cpu/lh7a40x/start.S b/arch/arm/cpu/lh7a40x/start.S index 62de8b8..80bd15b 100644 --- a/arch/arm/cpu/lh7a40x/start.S +++ b/arch/arm/cpu/lh7a40x/start.S @@ -93,6 +93,18 @@ _bss_end_ofs: _end_ofs: .word _end - _start
+.globl _rel_dyn_start_ofs +_rel_dyn_start_ofs: + .word __rel_dyn_start - _start + +.globl _rel_dyn_end_ofs +_rel_dyn_end_ofs: + .word __rel_dyn_end - _start + +.globl _dynsym_start_ofs +_dynsym_start_ofs: + .word __dynsym_start - _start + #ifdef CONFIG_USE_IRQ /* IRQ stack memory (calculated at run-time) */ .globl IRQ_STACK_START @@ -163,118 +175,6 @@ call_board_init_f: ldr r0,=0x00000000 bl board_init_f
-/*------------------------------------------------------------------------------*/ - -/* - * void relocate_code (addr_sp, gd, addr_moni) - * - * This "function" does not return, instead it continues in RAM - * after relocating the monitor code. - * - */ - .globl relocate_code -relocate_code: - mov r4, r0 /* save addr_sp */ - mov r5, r1 /* save addr of gd */ - mov r6, r2 /* save addr of destination */ - - /* Set up the stack */ -stack_setup: - mov sp, r4 - - adr r0, _start - cmp r0, r6 - beq clear_bss /* skip relocation */ - mov r1, r6 /* r1 <- scratch for copy_loop */ - ldr r3, _bss_start_ofs - add r2, r0, r3 /* r2 <- source end address */ - -copy_loop: - ldmia r0!, {r9-r10} /* copy from source address [r0] */ - stmia r1!, {r9-r10} /* copy to target address [r1] */ - cmp r0, r2 /* until source end address [r2] */ - blo copy_loop - -#ifndef CONFIG_SPL_BUILD - /* - * fix .rel.dyn relocations - */ - ldr r0, _TEXT_BASE /* r0 <- Text base */ - sub r9, r6, r0 /* r9 <- relocation offset */ - ldr r10, _dynsym_start_ofs /* r10 <- sym table ofs */ - add r10, r10, r0 /* r10 <- sym table in FLASH */ - ldr r2, _rel_dyn_start_ofs /* r2 <- rel dyn start ofs */ - add r2, r2, r0 /* r2 <- rel dyn start in FLASH */ - ldr r3, _rel_dyn_end_ofs /* r3 <- rel dyn end ofs */ - add r3, r3, r0 /* r3 <- rel dyn end in FLASH */ -fixloop: - ldr r0, [r2] /* r0 <- location to fix up, IN FLASH! */ - add r0, r0, r9 /* r0 <- location to fix up in RAM */ - ldr r1, [r2, #4] - and r7, r1, #0xff - cmp r7, #23 /* relative fixup? */ - beq fixrel - cmp r7, #2 /* absolute fixup? */ - beq fixabs - /* ignore unknown type of fixup */ - b fixnext -fixabs: - /* absolute fix: set location to (offset) symbol value */ - mov r1, r1, LSR #4 /* r1 <- symbol index in .dynsym */ - add r1, r10, r1 /* r1 <- address of symbol in table */ - ldr r1, [r1, #4] /* r1 <- symbol value */ - add r1, r1, r9 /* r1 <- relocated sym addr */ - b fixnext -fixrel: - /* relative fix: increase location by offset */ - ldr r1, [r0] - add r1, r1, r9 -fixnext: - str r1, [r0] - add r2, r2, #8 /* each rel.dyn entry is 8 bytes */ - cmp r2, r3 - blo fixloop -#endif - -clear_bss: -#ifndef CONFIG_SPL_BUILD - ldr r0, _bss_start_ofs - ldr r1, _bss_end_ofs - mov r4, r6 /* reloc addr */ - add r0, r0, r4 - add r1, r1, r4 - mov r2, #0x00000000 /* clear */ - -clbss_l:str r2, [r0] /* clear loop... */ - add r0, r0, #4 - cmp r0, r1 - bne clbss_l -#endif - -/* - * We are done. Do not return, instead branch to second part of board - * initialization, now running from RAM. - */ - ldr r0, _board_init_r_ofs - adr r1, _start - add lr, r0, r1 - add lr, lr, r9 - /* setup parameters for board_init_r */ - mov r0, r5 /* gd_t */ - mov r1, r6 /* dest_addr */ - /* jump to it ... */ - mov pc, lr - -_board_init_r_ofs: - .word board_init_r - _start - -_rel_dyn_start_ofs: - .word __rel_dyn_start - _start -_rel_dyn_end_ofs: - .word __rel_dyn_end - _start -_dynsym_start_ofs: - .word __dynsym_start - _start - /* ************************************************************************* * diff --git a/arch/arm/cpu/pxa/start.S b/arch/arm/cpu/pxa/start.S index ba0de8f..6255151 100644 --- a/arch/arm/cpu/pxa/start.S +++ b/arch/arm/cpu/pxa/start.S @@ -126,6 +126,18 @@ _bss_end_ofs: _end_ofs: .word _end - _start
+.globl _rel_dyn_start_ofs +_rel_dyn_start_ofs: + .word __rel_dyn_start - _start + +.globl _rel_dyn_end_ofs +_rel_dyn_end_ofs: + .word __rel_dyn_end - _start + +.globl _dynsym_start_ofs +_dynsym_start_ofs: + .word __dynsym_start - _start + #ifdef CONFIG_USE_IRQ /* IRQ stack memory (calculated at run-time) */ .globl IRQ_STACK_START @@ -171,132 +183,6 @@ call_board_init_f: ldr r0, =0x00000000 bl board_init_f
-/*------------------------------------------------------------------------------*/ -#ifndef CONFIG_SPL_BUILD -/* - * void relocate_code (addr_sp, gd, addr_moni) - * - * This "function" does not return, instead it continues in RAM - * after relocating the monitor code. - * - */ - .globl relocate_code -relocate_code: - mov r4, r0 /* save addr_sp */ - mov r5, r1 /* save addr of gd */ - mov r6, r2 /* save addr of destination */ - - /* Set up the stack */ -stack_setup: - mov sp, r4 - -/* Disable the Dcache RAM lock for stack now */ -#ifdef CONFIG_CPU_PXA25X - bl cpu_init_crit -#endif - - adr r0, _start - cmp r0, r6 - beq clear_bss /* skip relocation */ - mov r1, r6 /* r1 <- scratch for copy_loop */ - ldr r3, _bss_start_ofs - add r2, r0, r3 /* r2 <- source end address */ - -copy_loop: - ldmia r0!, {r9-r10} /* copy from source address [r0] */ - stmia r1!, {r9-r10} /* copy to target address [r1] */ - cmp r0, r2 /* until source end address [r2] */ - blo copy_loop - -#ifndef CONFIG_SPL_BUILD - /* - * fix .rel.dyn relocations - */ - ldr r0, _TEXT_BASE /* r0 <- Text base */ - sub r9, r6, r0 /* r9 <- relocation offset */ - ldr r10, _dynsym_start_ofs /* r10 <- sym table ofs */ - add r10, r10, r0 /* r10 <- sym table in FLASH */ - ldr r2, _rel_dyn_start_ofs /* r2 <- rel dyn start ofs */ - add r2, r2, r0 /* r2 <- rel dyn start in FLASH */ - ldr r3, _rel_dyn_end_ofs /* r3 <- rel dyn end ofs */ - add r3, r3, r0 /* r3 <- rel dyn end in FLASH */ -fixloop: - ldr r0, [r2] /* r0 <- location to fix up, IN FLASH! */ - add r0, r0, r9 /* r0 <- location to fix up in RAM */ - ldr r1, [r2, #4] - and r7, r1, #0xff - cmp r7, #23 /* relative fixup? */ - beq fixrel - cmp r7, #2 /* absolute fixup? */ - beq fixabs - /* ignore unknown type of fixup */ - b fixnext -fixabs: - /* absolute fix: set location to (offset) symbol value */ - mov r1, r1, LSR #4 /* r1 <- symbol index in .dynsym */ - add r1, r10, r1 /* r1 <- address of symbol in table */ - ldr r1, [r1, #4] /* r1 <- symbol value */ - add r1, r1, r9 /* r1 <- relocated sym addr */ - b fixnext -fixrel: - /* relative fix: increase location by offset */ - ldr r1, [r0] - add r1, r1, r9 -fixnext: - str r1, [r0] - add r2, r2, #8 /* each rel.dyn entry is 8 bytes */ - cmp r2, r3 - blo fixloop -#endif - -clear_bss: -#ifndef CONFIG_SPL_BUILD - ldr r0, _bss_start_ofs - ldr r1, _bss_end_ofs - mov r4, r6 /* reloc addr */ - add r0, r0, r4 - add r1, r1, r4 - mov r2, #0x00000000 /* clear */ - -clbss_l:str r2, [r0] /* clear loop... */ - add r0, r0, #4 - cmp r0, r1 - bne clbss_l -#endif /* #ifndef CONFIG_SPL_BUILD */ - -/* - * We are done. Do not return, instead branch to second part of board - * initialization, now running from RAM. - */ -#ifdef CONFIG_ONENAND_SPL - ldr r0, _onenand_boot_ofs - mov pc, r0 - -_onenand_boot_ofs: - .word onenand_boot -#else -jump_2_ram: - ldr r0, _board_init_r_ofs - ldr r1, _TEXT_BASE - add lr, r0, r1 - add lr, lr, r9 - /* setup parameters for board_init_r */ - mov r0, r5 /* gd_t */ - mov r1, r6 /* dest_addr */ - /* jump to it ... */ - mov pc, lr - -_board_init_r_ofs: - .word board_init_r - _start -#endif - -_rel_dyn_start_ofs: - .word __rel_dyn_start - _start -_rel_dyn_end_ofs: - .word __rel_dyn_end - _start -_dynsym_start_ofs: - .word __dynsym_start - _start -#endif /* ************************************************************************* * diff --git a/arch/arm/cpu/s3c44b0/start.S b/arch/arm/cpu/s3c44b0/start.S index a29d5b4..f52e94b 100644 --- a/arch/arm/cpu/s3c44b0/start.S +++ b/arch/arm/cpu/s3c44b0/start.S @@ -84,6 +84,18 @@ _bss_end_ofs: _end_ofs: .word _end - _start
+.globl _rel_dyn_start_ofs +_rel_dyn_start_ofs: + .word __rel_dyn_start - _start + +.globl _rel_dyn_end_ofs +_rel_dyn_end_ofs: + .word __rel_dyn_end - _start + +.globl _dynsym_start_ofs +_dynsym_start_ofs: + .word __dynsym_start - _start + #ifdef CONFIG_USE_IRQ /* IRQ stack memory (calculated at run-time) */ .globl IRQ_STACK_START @@ -135,121 +147,6 @@ call_board_init_f: ldr r0,=0x00000000 bl board_init_f
-/*------------------------------------------------------------------------------*/ - -/* - * void relocate_code (addr_sp, gd, addr_moni) - * - * This "function" does not return, instead it continues in RAM - * after relocating the monitor code. - * - */ - .globl relocate_code -relocate_code: - mov r4, r0 /* save addr_sp */ - mov r5, r1 /* save addr of gd */ - mov r6, r2 /* save addr of destination */ - - /* Set up the stack */ -stack_setup: - mov sp, r4 - - adr r0, _start - cmp r0, r6 - beq clear_bss /* skip relocation */ - mov r1, r6 /* r1 <- scratch for copy_loop */ - ldr r3, _bss_start_ofs - add r2, r0, r3 /* r2 <- source end address */ - -copy_loop: - ldmia r0!, {r9-r10} /* copy from source address [r0] */ - stmia r1!, {r9-r10} /* copy to target address [r1] */ - cmp r0, r2 /* until source end address [r2] */ - blo copy_loop - -#ifndef CONFIG_SPL_BUILD - /* - * fix .rel.dyn relocations - */ - ldr r0, _TEXT_BASE /* r0 <- Text base */ - sub r9, r6, r0 /* r9 <- relocation offset */ - ldr r10, _dynsym_start_ofs /* r10 <- sym table ofs */ - add r10, r10, r0 /* r10 <- sym table in FLASH */ - ldr r2, _rel_dyn_start_ofs /* r2 <- rel dyn start ofs */ - add r2, r2, r0 /* r2 <- rel dyn start in FLASH */ - ldr r3, _rel_dyn_end_ofs /* r3 <- rel dyn end ofs */ - add r3, r3, r0 /* r3 <- rel dyn end in FLASH */ -fixloop: - ldr r0, [r2] /* r0 <- location to fix up, IN FLASH! */ - add r0, r0, r9 /* r0 <- location to fix up in RAM */ - ldr r1, [r2, #4] - and r7, r1, #0xff - cmp r7, #23 /* relative fixup? */ - beq fixrel - cmp r7, #2 /* absolute fixup? */ - beq fixabs - /* ignore unknown type of fixup */ - b fixnext -fixabs: - /* absolute fix: set location to (offset) symbol value */ - mov r1, r1, LSR #4 /* r1 <- symbol index in .dynsym */ - add r1, r10, r1 /* r1 <- address of symbol in table */ - ldr r1, [r1, #4] /* r1 <- symbol value */ - add r1, r1, r9 /* r1 <- relocated sym addr */ - b fixnext -fixrel: - /* relative fix: increase location by offset */ - ldr r1, [r0] - add r1, r1, r9 -fixnext: - str r1, [r0] - add r2, r2, #8 /* each rel.dyn entry is 8 bytes */ - cmp r2, r3 - blo fixloop -#endif - -clear_bss: -#ifndef CONFIG_SPL_BUILD - ldr r0, _bss_start_ofs - ldr r1, _bss_end_ofs - mov r4, r6 /* reloc addr */ - add r0, r0, r4 - add r1, r1, r4 - mov r2, #0x00000000 /* clear */ - -clbss_l:str r2, [r0] /* clear loop... */ - add r0, r0, #4 - cmp r0, r1 - bne clbss_l - - bl coloured_LED_init - bl red_led_on -#endif - -/* - * We are done. Do not return, instead branch to second part of board - * initialization, now running from RAM. - */ - ldr r0, _board_init_r_ofs - adr r1, _start - add lr, r0, r1 - add lr, lr, r9 - /* setup parameters for board_init_r */ - mov r0, r5 /* gd_t */ - mov r1, r6 /* dest_addr */ - /* jump to it ... */ - mov pc, lr - -_board_init_r_ofs: - .word board_init_r - _start - -_rel_dyn_start_ofs: - .word __rel_dyn_start - _start -_rel_dyn_end_ofs: - .word __rel_dyn_end - _start -_dynsym_start_ofs: - .word __dynsym_start - _start - /* ************************************************************************* * diff --git a/arch/arm/cpu/sa1100/start.S b/arch/arm/cpu/sa1100/start.S index 92546d8..2221788 100644 --- a/arch/arm/cpu/sa1100/start.S +++ b/arch/arm/cpu/sa1100/start.S @@ -94,6 +94,18 @@ _bss_end_ofs: _end_ofs: .word _end - _start
+.globl _rel_dyn_start_ofs +_rel_dyn_start_ofs: + .word __rel_dyn_start - _start + +.globl _rel_dyn_end_ofs +_rel_dyn_end_ofs: + .word __rel_dyn_end - _start + +.globl _dynsym_start_ofs +_dynsym_start_ofs: + .word __dynsym_start - _start + #ifdef CONFIG_USE_IRQ /* IRQ stack memory (calculated at run-time) */ .globl IRQ_STACK_START @@ -139,118 +151,6 @@ call_board_init_f: ldr r0,=0x00000000 bl board_init_f
-/*------------------------------------------------------------------------------*/ - -/* - * void relocate_code (addr_sp, gd, addr_moni) - * - * This "function" does not return, instead it continues in RAM - * after relocating the monitor code. - * - */ - .globl relocate_code -relocate_code: - mov r4, r0 /* save addr_sp */ - mov r5, r1 /* save addr of gd */ - mov r6, r2 /* save addr of destination */ - - /* Set up the stack */ -stack_setup: - mov sp, r4 - - adr r0, _start - cmp r0, r6 - beq clear_bss /* skip relocation */ - mov r1, r6 /* r1 <- scratch for copy_loop */ - ldr r3, _bss_start_ofs - add r2, r0, r3 /* r2 <- source end address */ - -copy_loop: - ldmia r0!, {r9-r10} /* copy from source address [r0] */ - stmia r1!, {r9-r10} /* copy to target address [r1] */ - cmp r0, r2 /* until source end address [r2] */ - blo copy_loop - -#ifndef CONFIG_SPL_BUILD - /* - * fix .rel.dyn relocations - */ - ldr r0, _TEXT_BASE /* r0 <- Text base */ - sub r9, r6, r0 /* r9 <- relocation offset */ - ldr r10, _dynsym_start_ofs /* r10 <- sym table ofs */ - add r10, r10, r0 /* r10 <- sym table in FLASH */ - ldr r2, _rel_dyn_start_ofs /* r2 <- rel dyn start ofs */ - add r2, r2, r0 /* r2 <- rel dyn start in FLASH */ - ldr r3, _rel_dyn_end_ofs /* r3 <- rel dyn end ofs */ - add r3, r3, r0 /* r3 <- rel dyn end in FLASH */ -fixloop: - ldr r0, [r2] /* r0 <- location to fix up, IN FLASH! */ - add r0, r0, r9 /* r0 <- location to fix up in RAM */ - ldr r1, [r2, #4] - and r7, r1, #0xff - cmp r7, #23 /* relative fixup? */ - beq fixrel - cmp r7, #2 /* absolute fixup? */ - beq fixabs - /* ignore unknown type of fixup */ - b fixnext -fixabs: - /* absolute fix: set location to (offset) symbol value */ - mov r1, r1, LSR #4 /* r1 <- symbol index in .dynsym */ - add r1, r10, r1 /* r1 <- address of symbol in table */ - ldr r1, [r1, #4] /* r1 <- symbol value */ - add r1, r1, r9 /* r1 <- relocated sym addr */ - b fixnext -fixrel: - /* relative fix: increase location by offset */ - ldr r1, [r0] - add r1, r1, r9 -fixnext: - str r1, [r0] - add r2, r2, #8 /* each rel.dyn entry is 8 bytes */ - cmp r2, r3 - blo fixloop -#endif - -clear_bss: -#ifndef CONFIG_SPL_BUILD - ldr r0, _bss_start_ofs - ldr r1, _bss_end_ofs - mov r4, r6 /* reloc addr */ - add r0, r0, r4 - add r1, r1, r4 - mov r2, #0x00000000 /* clear */ - -clbss_l:str r2, [r0] /* clear loop... */ - add r0, r0, #4 - cmp r0, r1 - bne clbss_l -#endif - -/* - * We are done. Do not return, instead branch to second part of board - * initialization, now running from RAM. - */ - ldr r0, _board_init_r_ofs - adr r1, _start - add lr, r0, r1 - add lr, lr, r9 - /* setup parameters for board_init_r */ - mov r0, r5 /* gd_t */ - mov r1, r6 /* dest_addr */ - /* jump to it ... */ - mov pc, lr - -_board_init_r_ofs: - .word board_init_r - _start - -_rel_dyn_start_ofs: - .word __rel_dyn_start - _start -_rel_dyn_end_ofs: - .word __rel_dyn_end - _start -_dynsym_start_ofs: - .word __dynsym_start - _start - /* ************************************************************************* *